The record-breaking laser beam has revealed new properties of light, and it could be used in medical equipment or to create more powerful computer chips. A group of physicists from the University of Nebraska-Lincoln created the light by focusing a laser beam extremely intensely, bombarding a single electron with roughly 1, photons during each laser pulse. They then studied the properties of the light as it scattered from the electron. They found if light is bright enough, it actually changes the appearance of the object it scatters from.
Physicists Made the Brightest Light Ever
In scattering, when light interacts with the electrons of matter, they act as antennae to broadcast a new copy of the light. These electrons oscillate, or move up and down, faster as brightness increases. This eventually reaches speeds close to the speed of light, and at this point, the magnetic field of the light starts to change the path of oscillation. It moves from straight up and down, as in a usual antenna, to a figure-of-eight path.
Because of this, scattered light is then broadcast in different directions, with different colours and different levels of power. The scattered light has higher energy than the original light because it has energy equal to the sum of the laser photons. This higher energy is manifested in a change in colour of the light, making the object appear a different colour.
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It also changes the angles light is scattered from, making it appear to be a different shape. But here, the light is changing [the object's] appearance. Boris Johnson pledges to bring back Brexit deal before Christmas. Pope Francis warns of perils of atomic weapons during visit to Nagasaki.
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Menu go. Follow the Irish Examiner. Physicists create the brightest light ever produced on Earth.